221120122230320 has 80 divisors (see below), whose sum is σ = 553761697554432. Its totient is φ = 81873369219840.

The previous prime is 221120122230317. The next prime is 221120122230341. The reversal of 221120122230320 is 23032221021122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×221120122230320² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1938232952 + ... + 1938347031.

Almost surely, 2^{221120122230320} is an apocalyptic number.

221120122230320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221120122230320 is an abundant number, since it is smaller than the sum of its proper divisors (332641575324112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221120122230320 is a wasteful number, since it uses less digits than its factorization.

221120122230320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3876580050 (or 3876580044 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 221120122230320 its reverse (23032221021122), we get a palindrome (244152343251442).

The spelling of 221120122230320 in words is "two hundred twenty-one trillion, one hundred twenty billion, one hundred twenty-two million, two hundred thirty thousand, three hundred twenty".